Results 51 to 60 of about 25,873 (253)

Novel Ribosome-inactivating Protein (RIP) Isolated from Trichosanthes dioica Induces Apoptosis in HeLa Cell Line

open access: yesInternational Journal of Bio-Resource and Stress Management, 2021
Ribosome-inactivating proteins (RIPs) are toxic N-glycosidases that depurinate eukaryotic and prokaryotic rRNAs and thus interrupt protein synthesis during translation.
T. Ghosh   +3 more
doaj  

Improvement of the Pharmacological Properties of Maize RIP by Cysteine-Specific PEGylation

open access: yesToxins, 2016
To improve the pharmacological properties of maize ribosome-inactivating protein (maize RIP) for targeting HIV-infected cells, the previously engineered TAT-fused active form of maize RIP (MOD) was further engineered for cysteine-directed PEGylation.
Ka-Yee Au   +4 more
doaj   +1 more source

Involvement of loops 2 and 3 of alpha-sarcin on its ribotoxic activity [PDF]

open access: yes, 2015
Ribotoxins are a family of fungal ribosome-inactivating proteins displaying highly specific ribonucleolytic activity against the sarcin/ricin loop (SRL) of the larger rRNA, with a-sarcin as its best-characterized member.
Castaño Rodríguez, Carlos   +7 more
core   +1 more source

TRMT6‐Mediated m1A Modification of CDK9 mRNA Is a Dual‐Pronged Pathogenic Driver for HBV‐Related Hepatocellular Carcinoma

open access: yesAdvanced Science, EarlyView.
TRMT6‐mediated m1A modification in CDK9 mRNA enhances its mRNA stability and translation efficiency, thereby increasing the protein levels of CDK9. Upregulated CDK9 promotes the progression of HCC by elevating the levels of oncogenic factors including p‐STAT3, MCL1, and BCL‐2. On the other hand, CDK9 phosphorylates TARDBP at Ser254 to activate HBV core
Rui Zhang   +12 more
wiley   +1 more source

Lectin domains at the frontiers of plant defense [PDF]

open access: yes, 2014
Plants are under constant attack from pathogens and herbivorous insects. To protect and defend themselves, plants evolved a multi-layered surveillance system, known as the innate immune system.
Lannoo, Nausicaä, Van Damme, Els
core   +2 more sources

Plant proteins that inactivate foreign ribosomes

open access: yesBioscience Reports, 1986
Ribosome-inactivating proteins are a group of closely related proteins that are widely distributed throughout the plant kingdom and which share the unusual property of being able to inactivate mammalian ribosomes by an enzymic (non-stoichiometric) mechanism (1). Two major classes of these proteins are found in plants.
W K, Roberts, C P, Selitrennikoff
openaire   +2 more sources

Visualization of Endosomal Escape of Intracellularly Delivered Protein With Unexpected Photochemical Internalization of Trypan Blue

open access: yesAdvanced Science, EarlyView.
TB, a conventional cell viability dye, acts as both a fluorescence modulator (quenching GFP fluorescence upon protein binding and recovering it upon release) and a photosensitizer that triggers endosomal escape via photochemical internalization (PCI) under 590 nm light.
Zhongqi Yao   +4 more
wiley   +1 more source

Ribosome inactivation by Escherichia coli GTPase RsgA inhibits T4 phage

open access: yesFrontiers in Microbiology, 2023
IntroductionBacteria must combat phages, and myriad bacterial anti-phage systems have been discovered that reduce host metabolism, for example, by depleting energetic compounds like ATP and NAD+. Hence, these systems indirectly inhibit protein production.
Laura Fernández-García   +3 more
doaj   +1 more source

Characterization of a new toxin from the entomopathogenic fungus Metarhizium anisopliae: the ribotoxin anisoplin [PDF]

open access: yes, 2016
Metarhizium anisopliae is an entomopathogenic fungus relevant in biotechnology with applications like malaria vector control. Studies of its virulence factors are therefore of great interest.
Budia, Flor   +5 more
core   +2 more sources

Reduced Maintenance DNA Methylation Thresholds Enable Sensitive Reporter Assays for UHRF1 and DNMT1 Inhibition

open access: yesAdvanced Science, EarlyView.
The authors engineer colorectal cancer cells with reduced redundancy of UHRF1 and DNMT1, key DNA methylation maintenance factors, lowering the maintenance threshold and sensitizing cells to inhibition. They develop reporter assays driven by endogenous tumor‐suppressor gene promoters with enhanced sensitivity and dynamic range to demethylating drugs ...
Cuicui Xia   +15 more
wiley   +1 more source

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